推 winterkiller:辛苦了(_ _) 11/02 18:13
推 gemini7767:突然發現我用word打，好像貼過來排版會自動錯亂... 11/03 00:03
→ gemini7767:下次我會再整理得清楚些再貼上來!~^^" 11/03 00:04
Ch15
Plankton
Phytoplankton
Planktonic algae + cyanobacteria
Beginning of the food chain for the heterotrophic organisms
Great meadow(牧草) of the sea
Zooplankton
Ecology of the algae
Seaweeds: edible and industrially useful products
Red tides or brown tides
Carbon cycle
Generalized life cycle:
Sporic meiosis
Gametic meiosis
Zygotic meiosis
Zoospore: motile
Aplanospore: nonmotile
Sexual reproduction: syngamy
Isogametes
Isogamous
Anisogametes
Anisogamous
Oogamous卵配生殖?!
Asexual reproduction
Unicellular algae: mitosis and cell division
Multicelluar algae: vegetative fragments
Spores
During a growing season: asexual reproduction much faster
Taxonomic criteria
1.photosynthetic pigments
allalgaehave chl. A
differ in accessory pigments:
other form of chl., cartenoids, xanthophylls, phycobillins
2.photosynthetic products: starch, laminarin, paramylon, floridean starch
3.muber, type ,and position of flagella
4.chemistry of cell walls: ex. Diatom 95% SiO2
5.chl. Structure
6.molecular data
protists, the most nutritionally diverse of all eukaryotes, include
photoautotrophs, which contain chloroplasts
heterotrophs, which absorb organic molecules or ingest larger food particles
mixotrophs, which combine photosynthesis and heterotrophic nutrition
euglenoids: phylum euglenophyta
pellicle: proteinaceous strips, in the cytoplasm, immediately beneath the plasma membrane , flexible or rigid
paramylon
pyrenoid
reproduction;
asexually: cell division, nuclear envelope remains intact during mitosis- primitive feature
no sexual reproduction
dinoflagellates
are a diverse group of aquatic photoautotrophs and heterotrophs
are abundant components of both marine and freshwater phytoplankton
我已經盡力抄錄了，雖然還是有些來不及key in，所以大家就姑且看看吧!~^^"
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思愁
人聚月圓我獨歸，
徘徊四盼望尋伊；
似曾相識相思影，
淚墮衣衿自不知。
夢星晴
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